AK2540 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AK2540

Quad T1 Transceiver

Asahi Kasei Microdevices 

ASAHI KASEI

[AK2540]

RECEIVER

Receiver characteristics are guaranteed under the conditions shown below.

VDD=3.3V±5% or 5.0V±5%, VSS=0V, GND=0V, Ta=-40 - 85°C,

MCLK frequency: 1.544MHz±100ppm, 24.704MHz±100ppm,

AMI input data rate:1.544bps±130ppm(reference input level: 3V0p±20%)

Parameter

Symbol Min Typ Max Units

Conditions

Sensitivity

-6

dB Note 1

Loss of Signal Threshold

0.35 0.5 0.7 V0p Note 2

Jitter Tolerance

GR-499 CategoryI,II, ATT TR 62411

Consecutive Zeros before Loss of Signal

170 175 180

Note 3

Input Impedance

20

kohm Note 4

Note 1: Relative value to the reference level. Compare at 772kHz with all mark pattern.

Note 2: Level at the line side of transformer. Loss of signal is logical OR between an analog loss of

signal, which monitors input level, and a digital loss of signal, which checks recovered data

stream.

Note 3: The device will tolerate consecutive zeros until loss of signal is reported with QRSS (PN20

Modified) pattern.

Note 4: It is not subject to be tested for the production. Guaranteed by design.

JITTER TOLERANCE

1000

100

10

1

0.1

1

JITTER TOLERANCE

TR62411

10

100

1000

10000 100000

Jiiter Frequency(Hz)

MS0012-E-00

10

2000/1

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